she is two hours late.what ( )to her?

问题描述:

she is two hours late.what ( )to her?
A should have happened B must have happened C may have happened D can have happened
1个回答 分类:英语 2014-12-15

问题解答:

我来补答
应该是C项.
may 表示一种推断,推测.由“may+have+过去分词”组成.是一种可能性.是一种口语形式.
用can、must 比较生硬.
用should 表示“本应该”发生却没有发生.是虚拟与过去事实相反.在这里不合适.
 
 
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